Dane DeHaan is earning rave reviews for his performance in Kill Your Darlings at the Sundance Film Festival, but what audiences there are really talking about is his passionate onscreen kiss with Daniel Radcliffe, who plays a young Allen Ginsberg. We’re talking steamy, sexy, “is it getting warm in here?” stuff.

At the film’s Sundance premiere, DeHaan (known for his work in Chronicle and Lawless) revealed his trick to portraying such a realistic relationship: He fell in love with Daniel in real life. And, as Harry Potter fans across the globe already know, it wasn’t a hard task.

“Whenever you have somebody in a movie that you’re supposed to be in love with, I guess what I do is I look at that person and try to fall in love with them, and I see what about them is incredibly appealing to me,” Dane explained. “Dan’s such a great person; he wasn’t hard to fall in love with, you know? He’s funny, he’s nice, he’s kind, he’s a wonderful artist.”

We bet audiences will soon be falling in love with Dane as well, especially now that Kill Your Darlings was just picked up by Sony Pictures Classics.